Like then, the only option if you don't use chrome to install progressive web apps is to add them to your home screen. Where at least, on a lot of different launchers, you can't search them in the app drawer. It's almost like iOS really, except in iOS, You can just add them to the home screen, hide the pages with them on it. And then you can search them in spotlight or the app library 

 Third party launchers in Android are starting to become increasingly more annoying from the amount of changes in Quickstep (the internal name of the app switcher).

It's even worse on tablets with the taskbar